Question
a.
int *arr = malloc(r * c * sizeof(int));
b.
int *arr = (int *)malloc(r * c * sizeof(int));
c.
int *arr = (int *)malloc(r + c * sizeof(int));
d.
int *arr = (int *)malloc(r * c * sizeof(arr));
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Q. How do you allocate a matrix using a single pointer in C?(r and c are the number of rows and columns respectively)
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